The study being looked at is for persons receiving dialysis being tested. This is a very high risk population with end stage kidney failure. I would presume that as a group they would have taken the masking, isolation and social distancing very seriously, so they should have low rates. This is the group that if contracting COVID got quite sick with a higher likelihood of death.
Why it is being used to looks at national rates of antibody conversion is befuddling. It tells us the rates of conversion of a very select population.

Stupid and reckless hasn't been an evolutionary dead-end. Every generation seems to have plenty.

The surgeries were done at a non federal facility. It would require complicity of the preop nurse, anesthesia department as well as the physician. They are all required to review the consent form.
I have a sense this may be much ado about not much beyond basic communication and understanding.

"Anybody want a peanut."

Inconceivable!

Last team that can field a team wins the championship this year.

He is one member of Nebraska's unicameral state body.
If Sasse or Fischer switch that would be newsworthy.

That photo is odd, obviously in a restaurant and not a back yard barbecue. From the article it sounded like 6 had attended the back yard event and then spread it to multiple other family members.
RIP